(* ::Package:: *)

 


(* ::Section:: *)
(* LeftPartialD *)


(* ::Text:: *)
(*`LeftPartialD[\[Mu]]` denotes $\overleftarrow{\partial }_{\mu }$ acting to the left.*)


(* ::Subsection:: *)
(* See also *)


(* ::Text:: *)
(*ExpandPartialD, FCPartialD, LeftRightPartialD, RightPartialD.*)


(* ::Subsection:: *)
(* Examples *)


QuantumField[A,LorentzIndex[\[Mu]]] . LeftPartialD[\[Nu]]
ExpandPartialD[%]
StandardForm[%]


StandardForm[LeftPartialD[\[Mu]]]


QuantumField[A,LorentzIndex[\[Mu]]] . QuantumField[A,LorentzIndex[\[Nu]]] . LeftPartialD[\[Rho]]
ExpandPartialD[%]
StandardForm[%]
